Pulverizes



Nov. 6 1923.

A. A. -ASFLUND PULVERI ZER Filed Feb. i7, 1920 M l H- /Mfa Patented Nov. e, 1923.

UNITED STATES AXEL AUGUST AsPLUND, or AUBURN, NEW YORK.

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Application filedY February 17, 1920. Serial No. 359,413.

1o @ZZ/whom t may] concern 1 f Be it known that l. AXEL A. AsPLUND, citizen of Sweden7 residing at Auburn, in the county of Cayugav and State of New York, have invented certain new and useful Improvements in Pulverizers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

lThis invention relates to internal combustion engines and particularly to fuel valves for internal combustion engines in which a relatively heavy fuel is admitted with air under vhigh pressure and especially to a pulverizer for said fuel in said valve.

An object of this invention is to provide an improved means of pulverizing the heavy fuel as it enters the engine cylinder from the fuel valve and to provide a tortuous path for the fuel and air of such construction as will admit of the fuelbeing perfectly atomized when it enters the cylinder.

With these and other objects in view, the invention consists in the construction. the combination, the detail7 and arrangement of parts as hereinafter more fully described and claimed.

In the drawings:

Figure 1 is a sectional view partly in elevation through a fuel valve provided with my improved pulverizer.

Figure 2 is a fragmentary skeleton section at 2-2 of Figure 1.

Figure 3 is a detail of the valve control lever and eccentric.

Figure 4 is a detail of a collar for the valve control lever and eccentric.

This is one lof a series of copending applications being substantially simultaneously filed and bearing Serial Nos. 359,410,- 359,111,-a 359.1112, 359.4111, 359,415, 359,416 in which said other copending applications the elements in cooperation with the invention herein are more fully described and claimed.

There is provided a housing 2 for a fuel valve of any approved construction, which as here shown consists in a stem 3 in said housing 2 yyieldingly held upward by a spring 4; against Aa lever 5 abutting on a collar 6 on said stem 3, which lever 5 is variable by an eccentric 7 and which stem is reciprocated downward by a rocker 8 and upward by spring 4c together with the pressure in the engine cylinder and normally held on a seat 9. Aflixed to the end of stem 3 by threads 10 is my improved pulverizer 11, which is in the nature of an annulus provided with a tortuous path on its exterior yand with pockets in said path more specifically described as follows: The puli-*erizer 11 is in working abutment with housing 27 the fuel and air entering said path at 127 the air then under `a pressure usually hf about a thousand pounds per square inch and the fuel being admitted at about the same pressure. Air is also rushing through a conduit between the said valve stem 3 and said pulverizer 11. said conduit being indicated by numeral 13. Owing to the sluggishness of the fuel as compared to the air and also to the suction of the air passing through conduit 13 at a higher velocity owing to its tortuous path the velocity of the air as it passes through the pulverizer is greater than that of the fuel thus causing the air .to break up or crack the fuel as it enters the pulverizer at 12 and continues therethrough. After passing the entrance 12 to said path the fuel and air passes through a path in the nature of a right hand thread pointing into the center of the pulverizer at an angle of 200 from the radius and thence into a pocket 14, which pocket 14 is of `such predetermined size as to normally receive three fourths of the fuel for one impulse. From this pocket 14 the fuel and air continues in a reversed path through a left hand thread 15 into a pocket 16, which pocket 1.6 is of such predetermined size as to normally carry substantially one fourth of the fuel for a single impulse. and thence passes downward joining with .the air 'passing through conduit 13 and entering the cylinder with the air mixed with thoroughly atomized fuel. Air and fuel are admitted to the pulverizer as follow which is better shown in Figure 2. the fuel being admitted through a conduit 17 and the air being admitted through a conduit 18. the fuel passing from conduit 17 downward through a conduit 19 and into the pulverizer at 12, and the air passing from conduit 18 through a cylindrical conduit 20 surrounding a shell 21. which shell 21 surrounds valve stem 3, and the air passing from conduit 2O into entrance 12 and also passing through holes 22 into a cylindrical conduit 13 surrounding said valve stem as heretofore described.

Many of the elements herein shown are claimed in the aforesaid applications relating to the same subject matter of invention.

What I claim is:

l. A pulverizer having a continuous conduit, said conduit extending helically first in one rotative direction and then reversed and extending helically in the opposite rotative direction. f

2. A pulverizer having a continuous conduit said conduit extending helically '.irst in one rotative direction and then reversed and extending helically in the opposite rotative direction and having a mixing chamber intermediate said oppositely disposed helical portions.

y, 3. A pulverizer having a continuous condilit said conduit extending helically first in one rotative direction and then reversed and extending helicallyr in the opposite roaative direction and having mixing chambers adapted to accommodate a full fuel charge for each explosion of the engine.

4:. In a pulverizer, the combination Vof a conduit for compressed air and a continuous conduit said conduit extending helically first in one rotative direction and then reversed and extending helically in the oppo site rotative direction having pockets adapted to accommodate a full fuel charge for an engine explosion and a plurality of relatively small conduits connecting said helical, conduit and said air conduit adjacent their point of discharge.

In testimony whereof I aiiix my signature.

AXEL AUGUST ASPLUN D. 

